Building siding unit with interlocking backing board and outer panel

ABSTRACT

A siding unit for a building or like structure which includes an outer panel and a backing board. The outer panel of the siding unit includes a hook-shaped longitudinal edge portion which is adapted to interlock with the siding unit in the adjacent siding course. The outer panel also includes a rearwardly extending inturned hook part at its opposite longitudinal edge portion which is fitted over and interlocks with a lip formed in the longitudinal marginal portion of the backing board secured to the structure and located at the back of the outer panel.

United States Patent [1 1 Mattes [111 3,886,704 *June 3, 1975 BUILDINGSIDING UNIT WITH INTERLOCKING BACKING BOARD AND OUTER PANEL [75]Inventor: Lee H. Mattes, South Bend, Ind.

[*1 Notice: The portion of the term of this patent subsequent to Dec.25, 1990, has been disclaimed.

[73] Assignee: Mastic Corporation, South Bend,

Ind.

[22] Filed: Aug. 3, 1973 1 Appl. No.: 385,444

Related US. Application Data [63] Continuation-impart of Ser. No.197,031, Nov. 9,

1971, Pat. No. 3,780,483.

3,158,960 12/1964 Newton et a1. 52/522 3,380,215 4/1968 Schaefer et a1.52/549 3,485,004 12/1969 Mattes 52/531 X 3,504,467 4/1970 Hatch et al..52/531 X 3,520,099 7/1970 Mattes 52/556 X 3,568,388 3/1971 Flachbarth etal.. 52/241 X 3,703,795 11/1972 Mattes 52/531 X 3,775,920 12/1973Schneller..... 52/241 3,780,483 12/1973 Mattes 52/550 FOREIGN PATENTS ORAPPLICATlONS 643,327 6/1962 Canada 52/519 Primary ExaminerFrank L.Abbott Assistant Examiner-Leslie A. Braun Attorney, Agent, or FirmOltsch& Knoblock [57] ABSTRACT A siding unit for a building or like structurewhich includes an outer panel and a backing board. The outer panel ofthe siding unit includes a hook-shaped longitudinal edge portion whichis adapted to interlock with the siding unit in the adjacent sidingcourse. The outer panel also includes a rearwardly extending inturnedhook part at its opposite longitudinal edge portion which is fitted overand interlocks with a lip formed in the longitudinal marginal portion ofthe backing board secured to the structure and located at the back ofthe outer panel.

2 Claims, 6 Drawing Figures BUILDING SIDING UNIT WITH INTERLOCKINGBACKING BOARD AND OUTER PANEL SUMMARY OF THE INVENTION This inventionrelates to a siding unit for a building or like structure. i

The siding unit of this invention comprises an outer panel and a backingboard. The outer panel includes a longitudinal edge portion having arearwardly extending inturned hook part. The other longitudinal edgeportion of the outer panel includes a rearwardly extending inturned lip.The backing board has a longitudinal marginal portion which is of areduced thickness to define a lip. The backing board is secured againstthe building structure with its other longitudinal marginal portion nearor in contact with the outer panel of the siding unit in the adjacentsiding course. The outer panel of the siding unit is interlocked at itsother longitudinal edge portion with the outer panel of the siding unitin the adjacent siding course and is swung rearwardly against thebacking board with the hook part of the panel being snapped over andinterlocked with the lip of'the backing board.

Accordingly, it is an object of this invention to provide a siding unitfor a building or like structure which can be applied in a simple andrapid manner.

It is another object of this invention to provide a building siding unitcomprising an outer panel and a backing board in which only the backingboard is fixedly secured to the underlying building structure.

Another object of this invention is to provide building siding units inwhich only the backing boards of the units are secured to the structureand the outer panels of the units are slidable relative to theirrespective backing boards and to each other.

Other objects of this invention will become apparent upon a reading ofthe inventions description.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a fragmentary perspectiveview of the building siding units of this invention shown applied in avertical orientation to a building structure.

FIG. 2 is a detailed fragmentary view in sectional form showing theinterlocking relationship of the outer panels and backing boards of thebuilding siding units of this invention.

FIG. 3 is a fragmentary sectional view of that portion of the sidingunits of FIG. 1 encircled by broken line 3.

FIG. 4 is a sectional view taken along line 44 of FIG. 3.

FIG. 5 is a cross sectional view of an outer panel of the buildingsiding units of this invention.

FIG. 6 is a fragmentary perspective view ofa building siding unitabutting a horizontal retainer strip secured to the building structure.

DESCRIPTION OF THE PREFERRED EMBODIMENT The preferred embodimentillustrated is not intended to be exhaustive or to limit the inventionto the precise form disclosed. It is chosen and described in order tobest explain the principles of the invention and its ap- 2 plication andpractical use to thereby enable others skilled in the art to bestutilize the invention.

Each siding unit 5 includes an outer panel 10 and a cooperating backingboard I2. Outer panel 10 may be formed by extrusion or from sheet blankswhich are shaped bya series of progressive bending or forming dies andmay be of a plastic composition, such as polyvinylchloride, or ametallic composition. such as aluminum. Backing board 12 is preferablyformed of a rigid material. such as insulative fiberboard or ahoney-comb light weight plastic.

Each outer panel 10 includes spaced longitudinal or side edge portions14 and 16 and a face portion I8 extending between the longitudinal edgeportions. Face portion 18 includes an integral retainer part 20 whichextends along longitudinal edge portion 14. Retainer part 20 preferablyincludes a forwardly projecting inturned double-fold extension having anouter run 22 and a spaced inner run 24. A web 26 extends rearwardly fromthe upper edge of outer run 22 and terminates in an inturned lip 28which is rearwardly spaced from face portion 18. Inner run 24 ofretainer part 20 in conjunction with face portion 18 defines an invertedchannel 30. Web 26 and lip 28 in conjunction with face portion 18 form ahook means. In: other constructions of outer panel 10, retainer partruns 22 and 24 could be in the form of a, clip, such as that shown inFIG. 3 of US. Pat. No. 3,485,004. a t

Longitudinal edge portion 16 of each outer panel 10 includes a web 32which may be angled and which terminates in an inturned lip 34 whichgenerally parallels the plane of face portion 18 Lip 34 of each outerpanel 10 is adapted to be inserted into the retainer part channel 30 ofan outer panel 10 of a siding unit in the adjacent siding course. Web 32preferably extends forwardly of the general plane of face portion 18 andmay be integrally connected to the face portion by means of an offset36. One or more additional offsets 36 may be formed in face portion 18between edge portions 14 and 16 thereof.

Backing board 12 has a front'face 38, a rear face 40, a side edge 42 anda side edge 44 which preferably parallels side edge 42. Rear face 40 ofeach backing board terminates spacedly from side edge 44 to define a lipportion 46. Lip portion 46 is separated from rear face 40 of eachbacking board by a shoulder 48.

To attach the siding units of this invention to building structure 50, abacking board 12 is first positioned against the structure in a verticalorientation with its lower end edge 52 resting upon a ledge or retainerbracket 54 which has been secured to the building structure 50 and whichextends horizontally relative to the structure. Nails 51 or similarsecurement means are then driven through the backing board 12 and intobuilding structure 50 to anchor the backing board to the structure. Anouter panel 10 is then grasped and slid laterally until lip 34 thereofis received within channel 30 of the siding unit in the adjacent sidingcourse. Panel 10 is then swung rearwardly against the underlying securedbacking board 12 with lip 28 of the panel hook means at longitudinaledge portion 14 of the panel being flexed outwardly and snappeddownwardly over lip portion 46 of the backing board, thus interlockingthe panel with the underlying backing board and the panel 10 of theadjacent siding course. Lower edge 58 of each panel 10 when interlockedwith its underlying backing board and outer panel in the adjacent eatedbetween lip portion 46 of the backing board and building struetureSO,the outer-panel can be released as it will remain positioned against thebacking board. Another backing board 12 can now be grasped andpositioned against building structure 50 with its lower edge 52 restingupon retainer bracket 54 and with its side edge 42 overlapping incontact with or in close proximity to, as illustrated in HQ. 2, web 26ofthe previously positioned outer panel 10 in the new adjacent sidingcourse. The sequence of securing this last mentioned backing board 12 tothe building structure 50 and attaching another panel 10 to the backingboard is repeated as above described until siding of the structure iscompleted.

The width of web 26 and lip 28 of each outer panel 10 in relationship tothe thickness of lip portion 46 and the depth of shoulder 48 as measuredfrom side edge 44 of each backing board 12 is so related, as more fullydescribed in my application Ser. No. 197,031, filed Nov. 9. I971,incorporated herein by reference, that the interlocking arrangementbetween the outer panel and backing board as aforedescribed can beaccomplished with face portion 18 of each outer panel 10 preferablybeing positioned flatly against front face 38 of,itsunderlying backingboard. As can be seen from the drawings and the above description, onlythe backing boards 12 of the siding units are nailed to buildingstructure 50. This permits the outer panels 10 of the siding units whichare slidably interlocked together to expand and contract during-:usewithout buckling or distortion. Additionally, each of the outer panelsof the siding units is positioned and held against the buildingstructure by its underlying backing board.

It is to be understood that the invention is not to be limited to thedetails herein given, but may be modified withinthe scope of theappended claims.

What I claim is:

l. A siding unit for a building or like structure comprising an outerpanel and a backing board, said outer panel including spacedlongitudinal edge portions and a face portion extending between saidedge portions, one of said edge portion including a web extendingrearwardly of said face portion and terminating in an inturned lipspaced front said face portion to define hook means, retainer meansextending along said one edge portion, the other of said edge portionextending rearwardly and terminating in an inturned lip. said retainermeans receiving in slidable interlocking cooperating the lip of saidother edge portion ofan outer panel in the adjacent siding course, saidbacking board having spaced side edges and front and rear facesextending between said side edges, the rear face of said backing boardterminating spacedly from one of said side edges to define a lip portionof reduced thickness at said one side edge, said backing board havingits rear face positioned against said structure with the other of itsside edges extending adjacently along and lapping the web of said oneedge portion of an outer panel in another adjacent siding course andhaving its front face located in substantially the same plane as thefront face of the backing board in said another adjacent siding course,the lip portion of said first mentioned backing board being spaced fromsaid structure. means securing said first mentioned backing board onlyto said structure', said first mentioned backing board lapping the outerpanel in said another adjacent siding course only at'its said web, saidfirst mentioned outer panel having the lip of its other edge portioninterlocking with the retainer means of the outer panel in said anotheradjacent siding course, the hook means of said first mentioned outerpanel being fitted over and behind the lip portion of said firstmentioned backing board with the web of said first mentioned outer paneloverlying the one side edge of said first mentioned backing board,whereby said first mentioned outer panel is retained in position againstsaid structure by the outer panel in said another adjacent siding courseand said first mentioned backing board, said outer panels having lowerend edges, a horizontally extending retainer bracket, means securingsaid retainer bracket to said structure. said outer panels abutting saidretainer bracket at said end edges.

2. The siding unit of claim 1 wherein said backing boards have lower endedges. said backing boards abutting said retainer bracket at their saidend edges.

* l l i

1. A siding unit for a building or like structure comprising an outerpanel and a backing board, said outer panel including spacedlongitudinal edge portions and a face portion extending between saidedge portions, one of said edge portion including a web extendingrearwardly of said face portion and terminating in an inturned lipspaced from said face portion to define hook means, retainer meansextending along said one edge portion, the other of said edge portionextending rearwardly and terminating in an inturned lip, said retainermeans receiving in slidable interlocking cooperating the lip of saidother edge portion of an outer panel in the adjacent siding course, saidbacking board having spaced side edges and front and rear facesextending between said side edges, the rear face of said backing boardterminating spacedly from one of said side edges to define a lip portionof reduced thickness at said one side edge, said backing board havingits rear face positioned against said structure with the other of itsside edges extending adjacently along and lapping the web of said oneedge portion of an outer panel in another adjacent siding course andhaving its front face located in substantially the same plane as thefront face of the backing board in said another adjacent siding course,the lip portion of said first mentioned backing board being spaced fromsaid structure, means securing said first mentioned backing board onlyto said structure, said first mentioned backing board lapping the outerpanel in said another adjacent siding course only at its said web, saidfirst mentioned outer panel having the lip of its other edge portioninterlocking with the retainer means of the outer panel in said anothEradjacent siding course, the hook means of said first mentioned outerpanel being fitted over and behind the lip portion of said firstmentioned backing board with the web of said first mentioned outer paneloverlying the one side edge of said first mentioned backing board,whereby said first mentioned outer panel is retained in position againstsaid structure by the outer panel in said another adjacent siding courseand said first mentioned backing board, said outer panels having lowerend edges, a horizontally extending retainer bracket, means securingsaid retainer bracket to said structure, said outer panels abutting saidretainer bracket at said end edges.
 1. A siding unit for a building orlike structure comprising an outer panel and a backing board, said outerpanel including spaced longitudinal edge portions and a face portionextending between said edge portions, one of said edge portion includinga web extending rearwardly of said face portion and terminating in aninturned lip spaced from said face portion to define hook means,retainer means extending along said one edge portion, the other of saidedge portion extending rearwardly and terminating in an inturned lip,said retainer means receiving in slidable interlocking cooperating thelip of said other edge portion of an outer panel in the adjacent sidingcourse, said backing board having spaced side edges and front and rearfaces extending between said side edges, the rear face of said backingboard terminating spacedly from one of said side edges to define a lipportion of reduced thickness at said one side edge, said backing boardhaving its rear face positioned against said structure with the other ofits side edges extending adjacently along and lapping the web of saidone edge portion of an outer panel in another adjacent siding course andhaving its front face located in substantially the same plane as thefront face of the backing board in said another adjacent siding course,the lip portion of said first mentioned backing board being spaced fromsaid structure, means securing said first mentioned backing board onlyto said structure, said first mentioned backing board lapping the outerpanel in said another adjacent siding course only at its said web, saidfirst mentioned outer panel having the lip of its other edge portioninterlocking with the retainer means of the outer panel in said anothEradjacent siding course, the hook means of said first mentioned outerpanel being fitted over and behind the lip portion of said firstmentioned backing board with the web of said first mentioned outer paneloverlying the one side edge of said first mentioned backing board,whereby said first mentioned outer panel is retained in position againstsaid structure by the outer panel in said another adjacent siding courseand said first mentioned backing board, said outer panels having lowerend edges, a horizontally extending retainer bracket, means securingsaid retainer bracket to said structure, said outer panels abutting saidretainer bracket at said end edges.